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<head><meta charset="utf-8"><title>I-prioritize #67534 Promotion creates invalid constants that · t-compiler/wg-prioritization · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/index.html">t-compiler/wg-prioritization</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html">I-prioritize #67534 Promotion creates invalid constants that</a></h3>

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<a name="200289455"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200289455" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200289455">(Jun 09 2020 at 20:58)</a>:</h4>
<p><span class="user-group-mention" data-user-group-id="2403">@WG-prioritization</span> issue <a href="https://github.com/rust-lang/rust/issues/67534">#67534</a> has been requested for prioritization.</p>



<a name="200700718"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200700718" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200700718">(Jun 12 2020 at 17:38)</a>:</h4>
<p>bump</p>



<a name="200708292"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200708292" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200708292">(Jun 12 2020 at 18:39)</a>:</h4>
<p>IIUC this has language design implications, but the unsound cases are very niche</p>



<a name="200708322"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200708322" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200708322">(Jun 12 2020 at 18:39)</a>:</h4>
<p>So I think <code>P-medium</code> is appropriate</p>



<a name="200708355"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200708355" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200708355">(Jun 12 2020 at 18:39)</a>:</h4>
<p>Unless we really want to push this and tag as <code>P-high</code></p>



<a name="200709773"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200709773" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lcnr <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200709773">(Jun 12 2020 at 18:51)</a>:</h4>
<p>I think if we want to do something here we should do so earlier than later, so I am somewhat in favor of <code>P-high</code> here</p>



<a name="200710001"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200710001" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> lcnr <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200710001">(Jun 12 2020 at 18:53)</a>:</h4>
<p>Afaict under the stacked borrows model, this cannot cause actual unsoundness by itself, so <code>P-medium</code> should also be fine <span aria-label="sweat smile" class="emoji emoji-1f605" role="img" title="sweat smile">:sweat_smile:</span></p>



<a name="200710029"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200710029" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Léo Lanteri Thauvin <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200710029">(Jun 12 2020 at 18:53)</a>:</h4>
<p><span class="user-mention" data-user-id="116266">@Santiago Pastorino</span> thoughts?</p>



<a name="200710401"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200710401" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200710401">(Jun 12 2020 at 18:56)</a>:</h4>
<p>yeah, unsure :)</p>



<a name="200710409"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200710409" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200710409">(Jun 12 2020 at 18:56)</a>:</h4>
<p>I agree with your thoughts</p>



<a name="200710441"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200710441" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200710441">(Jun 12 2020 at 18:56)</a>:</h4>
<p>let's go with <code>P-high</code> I guess</p>



<a name="200736809"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200736809" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> triagebot <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200736809">(Jun 12 2020 at 23:34)</a>:</h4>
<p>Issue <a href="https://github.com/rust-lang/rust/issues/67534">#67534</a>'s prioritization request has been removed.</p>



<a name="200736815"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize%20%2367534%20Promotion%20creates%20invalid%20constants%20that/near/200736815" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> DPC <a href="https://rust-lang.github.io/zulip_archive/stream/227806-t-compiler/wg-prioritization/topic/I-prioritize.20.2367534.20Promotion.20creates.20invalid.20constants.20that.html#200736815">(Jun 12 2020 at 23:34)</a>:</h4>
<p>marked as p-high</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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